#include<stdio.h>
#include<string.h>
#include<unistd.h>

int main()
{
const char*fstr="hello fwrite\n";
const char*str="hello write\n";
//C接口
printf("hello printf\n");
fprintf(stdout,"hello fprintf\n");
fwrite(fstr,strlen(fstr),1,stdout);
//// 操作提供的systemcall
write(1,str,strlen(str));
fork();
//close(1);
return 0;
}
